Meat-slicer



W. H. DONALD.

MEAT SLICER- APPLICATION msn SEPT. 7. 1920.

Patented Dec. 21, 1920.

2 S HEETS-S'HEET I.

w H. DONALD.

MEAT SLICER.

APPLICATION FILED SEPT. 7, I920- Patented Dec. 21, 1920.

2 SHEETS-SHEET 2.

UNETED STATfld @FFME.

WILLIAM H. DONALD, OF TORONTO, ONTARIO, CANADA, ASSIGNOR OF 0NE-HALF TOKENNETH G. LITTLE, 0F TORONTO, ONTARIO, CANADA.

MEAT-SLICER.

Specification of Letters Patent.

Patented Dec. 21, 1920.

Application filed September '7, 1920. Serial No. 408,761.

1 '0 all 10 ham it may concern:

Be it known that T. lVrrman Hnoron DONALD, mechanical engineer, of thecity of Toronto, in the county of York and Province of Ontario, Canada,have invented a new and useful Improvement in Meat- Sliccrs, of whichthe following is a full, clear, and exact description of the same.

My invention relates to a meat slicing device by which meat and otheredibles may be cut in various thicknesses, and whereby the meat or otheredibles will be regularly fed to the cutting section of the device tcome into contact with the cutter.

The objects of my device are to construct a machine in compact form.with few working parts, and arrange all of the parts of the operatingmechanism within a casing base to prevent dirt and grease from cominginto contact therewith, and provided with a re movable top, to readilyfacilitate in getting at the operating mechanism to make adjust ments.

The cutting member of the device con1- prisesa pivotally connectedswinging arm fitted with a rotary circular cutting knife, that in courseof actuation will travel over and against the cutting edge of the baseand slice the meat with an advancing and sawing effect, with the resultthat I get a clean and regular cut, and very rapid in action.

In the drawings:

Figure 1 is a perspective view of the cor plete device;

Fig. 2 is 'a top plan view of the device with the cover and tableremoved and partially broken away to show the interior mechanism;

Fig. 3 is a fragmental sectional view of the feed adjusting mechanism;

F a is a sectional detail of the swinging arm connection with theoperating mechanism; and

Fig. 5 is a sectional detail through the cutting disk, and a fragment ofthe swinging arm.

Like letters of reference refer to like parts throughout thespecifications and drawings.

a designates a suitable base preferably of a rectangular formation, inthe nature of a casing, and Z) is a top removably connected therewith.The object of making the top 7) removable is to readily facilitate ingetting at the operating mechanism located within the base, for makingadjustments and for cleaning the interior parts.

0 designates a carrying table carried by a spider frame 0 adapted toride on the top side edges of the base a and under the top I). The table0 is adapted to travel lengthwise of the top 6 to carry the meat to thefront part of the device to bring it into contact with the cuttingmember, consisting of a swinging arm (Z and a rotary disk knife 0carried on the outer end thereof. and adapted to be revolved at a highspeed by a sprocket and chain drive, driven by operating mechanismlocated within the interior of the swinging arm.

Suitably journaled in lateral relation with the base a is a drive shaft7. one end of the shaft extending out through the side of the base, andkeyed on the outer end is a hand wheel fitted with an operating handleit by which it may be turned.

Formed integral with the swinging arm (Z is a sleeve 71 adapted toextend into the interior of the base at right angles with the driveshaft f. The sleeve is suitably journaled in bearings j and 71 eitherformed integral with the base a or removably fit ted therein.

Z designates a drive shaft extending in concentric relation through thesleeve 77, and keyed on the inner end of the shaft is a small bevelpinion m, adapted to constantly engage in mesh with a larger bevelpinion n keyed on the end of the main drive shaft Keyed on the outer endof the shaft Z is a sprocket wheel 0 and passing around the sprocket 0and a sprocket 79 keyed on a small spindle q 'journaled in the outer endof the swinging arm (Z is a sprocket chain 7* for transmitting acontinuous driving power for rotating the cutting disk keyed to the endof the spindle q.

c designates a circular disk cutting knife :emovably keyed on the end ofthe spindle q. The disk is suitably protected by a guard a connectedwith the swinging arm '(Z. and cut away at one section to expose theedge of the cutting knife, to permit it to which the fingers of a personmay pass for conveniently removing the disk for sharpening, and forreplacing the same.

to designates a small pinion gear set on the drive shaft f, and adaptedto be adjustably fixed thereon by a clutch member 50 held by a lockingbolt or screw.

Journaled in the side of the base is a gear 2 adapted to mesh with thegear to and through which the swinging arm (Z is actuated, and also bywhich the spider frame 0 and the table 0 is forwardly adjusted by meansarranged in combination with the gears, and a cam 2 formed on the sideof the gear Surrounded and fastened in a convenient manner to the sleeve2', intermediate the journals j and 7c is a collar 2, and connected inpivotal relation with the collar 2 is a yoke arm 3. The yoke arm 3 isfitted with a connecting pin 4 engaging in projecting and ex-' tendiblerelation with the end of the yoke The front end of the pin a ispivotally connected with the side face of the gear 1 in any suitablemanner, so that with the revolution of the gear 1] and by the connectionwith the yoke arm 3, the swinging arm (Z will be actuated forwardly andbackwardly. Witheach complete revolution of the gear y the swinging armcl 'travels forwardly to make the cut, and returns to the normal orstarting position. The one half revolution of the gear 3 and by itsconnection with the collar 2 rocks the swinging arm (Z forwardly, andthe other half revolution returns it to the normal or starting position,or with each complete revolution of the gear 1 the rocking arm d will beactuated forwardly and backwardly.

Pivotally connected with a bar 5 extending across and fixed to the sidesof the base is a tripping lever 6 adapted to control the width of thecut by the knife. The end of the tripping lever is set to engage with agage adjustment fitted in the base. The adjustment is made by a push rod7 extending through the side wall of the base, and connected at theinner end with a block 8 slidably mounted on a rod 9 extending acrossthe interior of the base. The end of the tripping lever 6 engages inbetween the block 8 and a pin 10 projecting upwardly from the top edgeof the push rod 7 Extending longitudinally through the in terior of thebase is a rocking shaft 11, on

which is set a tripping arm 12 adapted to en gage with the face of a cam2 formed on the side of the gear y, once with each revolution of thegear. By the engagement of the cam with the tripping arm 12 the rock ingshaft 11 will partially turn, and actuate a ratchet 1 1 keyed on the endof a feeding screw 15 set in the top part of the rear end of the base.The ratchet 14 is operated by a pawl 17 tripped by a lever link 16 keyedon the rocking shaft 11. 16 designates a small tension spring connectedand extending between the lever link 16 and the side wall of the base,by which the tripping arm 12 projecting from the rocking shaft 11 isheld in position to contact with the cam e as the gear 3 revolves.

Set on the rocking shaft 11 is an adjusting block 18 adapted to engagewith the inner end of the tripping lever 6 and limit the extent of theturning of the rocking shaft by the engagement with the inner end of thetripping lever, and thereby control the throw of the lever link 16, andthe extent of the rotation of the ratchet 14, connected with the leverlink 16, by which the turning of the feeding screw 15 is regulated, andset, tolimit the traveling movement of the table 0 forwardly, to carrythe meat to the cuttinged 'e of the base to engage with the cutting(liSK.

livotally connected with the back edge of the spider frame 0 is a dog19, held in engagement to mesh with the screw 15 by a small tensionspring 19 carried over and connected with the inner side wall of thebase a, so that with the turning of the screw 15 the table 0 carried bythe spider frame 0 will slowly move forward, the distance beingregulated by the adjustment as fixed by the push rod 7 and the tilt ofthe rocking shaft 11 as actuated by the engagement with the cam lVitheach partial turn the pawl will rotate a degree of a circle, and thetable will be moved forwardly a corresponding distance.

The end of the screw 15 projects out through the back end of the casing,and is formed with a finger grip 21 by which the screw may bemanipulated and turned in either direction, to advance the table 0forwardly more rapidly than by the operation by the mechanism within thecasing, driven by the hand wheel, or for the purpose of slightlyadjusting the table backwardly if so desired.

19 designates a tripping rod connected with the dog 19. The rod extendsout be-.

tween the table top I) and the top edge of the base, and is connectedwith a lever arm 19 pivotally connected with some part of the spiderframe 0. The object of the tripping rod is to disengage the dog from thescrew for the purpose of sliding the table backwardly or forwardly byhand or for any other purpose in the operation of the device.

The operation of the device is as follows :-The hand wheel 9 is turnedby the handle 7L and the shaft f turns therewith, so that with themeshing of the bevel gear keyed on the end thereof, and with the bevelgear keyed on the end of the knife shaft passing centrally through thesleeve forming part of the swinging arm, the shaft will rotate, and turntherewith the sprocket wheel keyed on the end thereof, and drive thesprocket chain passing therearound, and around the sprocket wheel keyedon the end of the knife spindle, and revolve the knife. At the same timethe gear w set on the drive shaft f drives the gear 9 in mesh therewith,and through the yoke arm connection with the gear and collar 2,pivotally connected with the sleeve of the swinging arm, will cause theswinging arm to rock forwardly and backwardly with each. completerevolution of the gear y.

By the revolution of the gear 3 and the engagement of the rocking shaft,and the parts arranged in combination therewith, certain functionalaction is effected by the engagement of the tripping arm 12 and the cam2 formed on the side of the gear, by which the table top will advanceforwardly in regular movement intermittent with the forward and backwardtravel of the swinging arm.

Various modifications may be made in the arrangement and design of theseveral parts without in any way deviating from the nature of myinvention.

lVh-at I claim as new and desire to secure by Letters Patent is 1. In ameat slicing device, a suitable base having a removable and adjustablecover formed therewith, a drive shaft suitably journaled in said base,and means fitted on the outer end of said shaft. for turning same, aswinging arm having a sleeve formed at right angles therewith, saidsleeve suitably journaled through the end of said base, and at rightangles with said drive shaft, a drive shaft journaled centrally throughsaid sleeve, a collar and yoke arm fitted with the said sleeve, gearssuitably arranged within said base and with said drive shafts, saidgears being pivotally arranged with the said yoke arm and adapted toactuate said sleeve and swinging arm in a forwardly and backwardlydirection against the upper front edge of the said base, a rotatablecutting disk suitably journaled in the upper end of the said swingingarm, and means arranged with said gears for rotating said cutting disk,substantially as described.

2. In a meat slicing device, a suitable base provided with a removabletop, a drive shaft suitably journaled in said base, said shaft extendingout through the side of said base and provided with means for turningsame, a swinging arm formed with a. sleeve at right angles suitablyjournaled through the end of said base, and at right angles with saiddrive shaft, a drive shaft journaled in said sleeve, a collar and yokearm pivotally fitted with the said sleeve, said yoke arm. beingpivotally connected with a gear wheel suitably journaled with in thesaid base, said gear adapted to be rotated by a gear keyed on the saiddrive shaft, a rotary knife disk suitably journaled in the outer end ofsaid swinging arm, suitable means arranged with said swinging arm forrotating said knife disk and said yoke arm connected with said gearadapted to transmit a rocking motion to said swinging arm, substantiallyas described.

3. In a meat slicing device, a suitable base in the form of a casing, aremovable cover adapted to engage over the said base, a drive shaftjournaled in said base, one end of said shaft projecting out through theside of said base, a hand drive wheel fitted on the end of said shaft, aswinging arm to which a cutting disk is rotatably journaled in the outerend thereof, a sleeve formed in tegrally and at right angles with saidswinging arm, said sleeve adapted to eX- tend into the interior of saidbase in journaled relation therewith, a shaft passing centrally throughthe said sleeve, a bevel gear keyed on the inner end of said shaft, saidgear adapted to engage with a bevel gear keyed on the end of said driveshaft j ournaled in the said casing at right angles therewith, a gearset on the said drive shaft, said gear adapted to mesh with a gearjournaled in the side wall of said base, a collar surrounding and fittedto said sleeve of said swinging arm, a yoke arm connected there with andextending between said collar and in pivotal engagement with the outerface of said gear, said gear by revolving therein adapted to transmit arocking motion in a forwardly and backwardly relation to the saidswinging arm, a sprocket and chain driving mechanism arranged with thesaid knife disk, means fitted in the said casing and in combinationalengagement with the said gear for intermittingly actuating the table topforwardly, substantially as described.

4t. In a meat slicing device, a suitable base, an adj ustable removablecover arranged therewith, a swinging arm supported in journaled relationwith the said base, a rotatable knife disk suitably journaled in theouter end of said swinging arm, means arranged with the said swingingarm for rotating said knife disk, a drive shaft suitably journaled inthe said base, the end of said drive shaft projecting out through theside wall of said. base, means fitted on the outer end of said shaft forrevolving same, a series of gears journaled within said base, andadapted to actuate said swinging arm backwardly and forwardly againstthe upper front edge of the said base, said gears arranged and adaptedto revolve the said Signed at Toronto, this 31st day of Auknife disk andsuitabe means arianged gust, 1920. i

With the said ears to a Vance the ta 1e top T forwardly in anintermittent motion to WILLIAM carry the table and contents forwardly toIn the presence of-- engage With the cutting knife disk, substan- ANDREWA. ADAMS,

tially as described. CHAS. J. M. CAUGHLIN.

